A searching algorithm based on the best bases of wavelet packet
Yang Guangming · Ha'erbin gongye daxue xuebao · 2009
A searching algorithm using wavelet packet transform based on the best bases is proposed.The wavelet decomposition coefficients in signal singularities are far greater than others,and an effective compression approach can be put forward based on this characteristic.It reserves the bigger coefficients related to useful information in the nodes of wavelet packet decompression and gets rid of the remaining interferential data.As a result,signal is denoised and greatly compressed,and easily to be stored and transfered.Examples of the provided algorithm and their better results than other approaches used in decomposition and compression are performed to illustrate the advantages of this algorithm.